KMA199,115 NXP Semiconductors, KMA199,115 Datasheet - Page 20

• Manufacturer Part Number: KMA199,115
• Description: IC SENSOR PROG ANGLE SOT880
• Manufacturer: NXP Semiconductors

Specifications of KMA199,115

• Operational Type: Programmable Angle Sensor
• Operating Supply Voltage: 5 V
• Supply Current: 5 mA to 10 mA
• Package / Case: SOT-880
• Mounting Style: Through Hole
• Supply Voltage (min): 4.5 V
• Supply Voltage (max): 5.5 V
• Maximum Output Current: 20 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
KMA199_1
Product data sheet
13.3.2 Read access
To read data from the sensor, the following procedure must be performed:
Figure 16
data on the bus from the master or slave. The signals master output enable and slave
output enable just symbolize if the master or the slave output is enabled or disabled,
respectively.
Fig 16. OWI read access
•
•
•
•
•
•
•
•
master
enable
enable
output
output
Start condition: The master drives a rising edge after a LOW level
Command: The master sends a read command (CMD0 = 1)
Handover: The master sends a handover bit, that is a logic 0 and disables the output
after a three-quarter bit period
Takeover: The slave drives a LOW level after the falling edge for t
Data: The slave sends two data bytes
Handover: The slave sends a handover bit, that is a logic 0 and disables the output
after a three-quarter bit period
Takeover: The master drives a LOW level after the falling edge for t
Stop condition: The master drives a rising edge after a LOW level
slave
OWI
(1) Duration of LOW level for slave takeover t
(2) There is an overlap in the output enables of master and slave, because both drive a LOW level.
(3) Duration of LOW level for master takeover t
(4) If the master does not take over and a pull-up exists, the stop condition is generated by the pull-up.
(5) If the master does not drive the bus, the bus is defined by the bus-pull.
However this ensures the independency from having a pull-up or pull-down on the bus. In addition
it improves the ElectroMagnetic Compatibility (EMC) robustness, because all levels are actively
driven.
Otherwise a time-out is generated if there is a pull-down and the slave waits for a rising edge as
start condition.
shows the read access of the digital interface. The signal OWI represents the
START
All information provided in this document is subject to legal disclaimers.
CMD7
Rev. 01 — 26 April 2010
CMD0
HANDSHAKE
(1)
(2)
tko(slv)
tko(mas)
RDATA15
.
.
RDATA0
Programmable angle sensor
HANDSHAKE
(3)
(2)
tko(slv)
© NXP B.V. 2010. All rights reserved.
tko(mas)
KMA199
(4)
STOP
IDLE
001aag744
(5)
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